How to solve Qt Creators variable-“” behavior?

Question

I have the same problem as described in Variables in Locals and Expressions not accessible in QT Creator but I want to find a way how to \"repair\" Qt Creator showing defaul

Answer 1

Fedora uses rpm for package management - use it. Reinstallation of the entire OS would be pointless, it's cargo cult IT. If you run rpm -Va, you can verify if the packages have not been corrupted, that's all you really need.

Creator has Qt-version-specific debugging helpers, perhaps they don't extend to C++ standard library.

To make sure that the whatever helpers are available are built, go to Preferences -> Build&Run -> Qt Versions. For each Qt version, go to the details of the Helpers pane, and click [Build All].